DatePlus (Built-in Mathematica Symbol)

DatePlus[date, n] gives the date n days after date.DatePlus[date, {n, " unit"}] gives the date n units after date.DatePlus[date, {{n_1, "unit_1"}, {n_2, "unit_2"}, ...}] ...

MinusPlus (Built-in Mathematica Symbol)

MinusPlus[x] displays as \[MinusPlus]x.MinusPlus[x, y, ...] displays as x \[MinusPlus] y \[MinusPlus] ....

SuperPlus (Built-in Mathematica Symbol)

SuperPlus[expr] displays as expr^+.

UnionPlus (Built-in Mathematica Symbol)

UnionPlus[x, y, ...] displays as x \[UnionPlus] y \[UnionPlus] ....

Optional and Default Arguments (Mathematica Tutorial)

Sometimes you may want to set up functions where certain arguments, if omitted, are given "default values". The pattern x_:v stands for an object that can be omitted, and if ...

Flat and Orderless Functions (Mathematica Tutorial)

Although Mathematica matches patterns in a purely structural fashion, its notion of structural equivalence is quite sophisticated. In particular, it takes account of ...

ParallelSum (Built-in Mathematica Symbol)

ParallelSum[expr, {i, i_max}] evaluates in parallel the sum \[Sum]i = 1 i_max expr.ParallelSum[expr, {i, i_min, i_max}] starts with i = i min.ParallelSum[expr, {i, i_min, ...

Arithmetic Functions (Mathematica Guide)

Mathematica immediately allows you to do arithmetic not only with individual numbers, but also with arbitrary lists or arrays—as well as symbolic and algebraic forms. ...

ImageAdd (Built-in Mathematica Symbol)

ImageAdd[image, x] adds an amount x to each channel value in image.ImageAdd[image_1, image_2] gives an image in which each pixel is the sum of the corresponding pixels in ...

Symbolic Notational Forms (Mathematica Guide)

Built into Mathematica are hundreds of powerful notational forms that can be arbitrarily combined and immediately accessed through their symbolic representations. Many common ...